Like more than one of them
21 games close to two or more of Mabinogi, Left 4 Dead 2 and Garry's Mod
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · SurvivalAlso like Garry's Mod
Unturned
Left 4 Dead 2, but free to play, and a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod
Totally Accurate Battlegrounds
Garry's Mod, but free to play, and a battle royale
Liked · 88%Physics · SandboxAlso like Left 4 Dead 2
STALZONE
Mabinogi, but free to play, and an extraction shooter
Mixed · 72%MMORPG · Massively MultiplayerAlso like Left 4 Dead 2
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Garry's Mod
PlanetSide 2
Garry's Mod, but free to play, and an MMO
Liked · 80%FPS · ShooterAlso like Left 4 Dead 2
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
Far Cry 4
Garry's Mod, but open world, and half the hours
Liked · 85%FPS · SandboxAlso like Left 4 Dead 2
Tom Clancy's The Division
Mabinogi, but a looter shooter, and co-op
Mixed · 71%Massively Multiplayer · MMORPGAlso like Left 4 Dead 2
Counter-Strike Nexon
Left 4 Dead 2, but PvP, and more divisive
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Insurgency: Sandstorm
Garry's Mod, but military, and more divisive
Liked · 85%FPS · ShooterAlso like Left 4 Dead 2
Fallout 3 - Game of the Year Edition
Garry's Mod, but an action RPG, and a quarter of the hours
Liked · 82%Sandbox · FPSAlso like Mabinogi and Left 4 Dead 2
Fallout: New Vegas
Garry's Mod, but an action RPG, and post-apocalyptic
Loved · 96%FPS · SandboxAlso like Left 4 Dead 2
Z1 Battle Royale
Left 4 Dead 2, but an MMO, and open world
Divisive · 56%Zombies · SurvivalAlso like Garry's Mod
Far Cry 3
Garry's Mod, but stealthy, and a third of the hours
Liked · 88%FPS · SandboxAlso like Left 4 Dead 2
Blockland
Garry's Mod, but open world, and a quarter of the hours
Mixed · 74%Building · SandboxAlso like Left 4 Dead 2
More like Mabinogi
5 games closest to Mabinogi of your picks
Sword Art Online: Fatal Bullet
Mabinogi, but third-person, and a third of the hours
Mixed · 79%MMORPG · Anime
FINAL FANTASY XIV Online
Mabinogi, but co-op, and four times the hours
Liked · 87%MMORPG · Massively Multiplayer
More like Garry's Mod
4 games closest to Garry's Mod of your picks
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · Physics
Just Cause 2
Garry's Mod, but a third-person shooter, and a quarter of the hours
Loved · 91%Sandbox · Physics
How this list is made
Each game is measured against each of your picks the way a games-like list measures it: the Steam community tags, Steam genres and IGDB themes they share, each counting for more the fewer games carry it. A game's place is how alike it is to your picks together, as a share of each pick's best match, so one alike to two of them comes before one alike to just one. It must be close to at least one of them, as close as it would have to be on that game's own list.
None of your picks is on the list, nor a second release of one, nor a game of their own series. Up to 30 games are shown. Under each name, the kinds it shares with the pick it is closest to, and how it differs from that pick.